The state of lipid peroxidation and antioxidant protection systems in patients with different of local cold injury of the extremities

Author(s):  
O.S. Gruzdeva ◽  
K.G. Shapovalov ◽  
M.I. Mikhailichenko

The authors studied the state of lipid peroxidation systems and antioxidant protection in of the extremities in different periods. It was revealed that in patients with frostbite of the radical oxidation and the level of antioxidant protection depended on periods of cold 20 people were in the control group, 30 patients with local cold trauma in the early reactive late reactive period (LRP) there were 40 people, and in the granulation and epithelization period (GEP) there were 15 people. There was a persistent increase in the concentration of the early, late reactive periods and the period of granulation and epithelization. In red blood cells, the content of intermediate intermediates of free radical lipid oxidation increases. The catalase activity in erythrocytes of victims with frostbite of the extremities decreases, but does not change in the blood serum. The dynamics of the serum in patients at different times of local cold injury in comparison with healthy people is not observed.

2019 ◽  
Vol 4 (1) ◽  
pp. 133-137
Author(s):  
Anastasiya S. Brichagina ◽  
Mariya I. Dolgikh ◽  
Larisa R. Kolesnikova ◽  
Larisa V. Natyaganova

Various pathologies, in particular hypertension, accompany violation of the processes of free radical oxidation. The state of the system lipid peroxidation – antioxidant protection can be assessed only by a complex of biochemical methods. The chemiluminescent method is used to obtain a faster result. The method has a number of advantages: measurement of chemiluminescence parameters is carried out in natural conditions and does not require sample preparation, is highly selective, it can be used to identify the presence of free radical pathology, analysis of the intensity of lipid peroxidation processes, the effectiveness of treatment with antioxidant medicament. The aim of the research was to study the lipid peroxidation under hypertension and stress by chemiluminescence. The experiment was conducted on male rats of the ISIAH line. The experiment consisted of 2 stages: stage of alarm and stage of chronic stress. We found that, depending on the type of stress, the state of the system lipid peroxidation-antioxidant protection differed. The role of stress in violation of the processes of lipoperoxidation in hypertension was established. The efficacy of the chemiluminescence method as an alternative to a complex of biochemical methods is shown. Express assessment of pro- and antioxidant status is possible for patients with hypertension.


2021 ◽  
Vol 11 (3) ◽  
pp. 12-17
Author(s):  
A. V. Elikov

Objective: to study the main indicators of free radical oxidation and antioxidant protection in the erythrocytes of former athletes, depending on the period of termination of sports.Materials and methods: 24 former male athletes aged 19–29 years were examined, who were divided into 2 groups of 12 people each (1st group — former athletes who stopped training for up to 2 years; 2nd — over 2 years). The control group consisted of 15 practically healthy untrained student volunteers of the same age. In erythrocytes, spectrophotometrically (spectrophotometer Shimadzu 1240, Japan), the activity of antioxidant enzymes was determined: superoxide dismutase (SOD) (K.F. 1.15.1.1) — by inhibiting the reduction of nitro blue tetrazolium by superoxide anion radical at λ = 540 nm, after preliminary processing of erythrocytes by the method of Dubinina E.E. and others [8]; catalase (K.F. 1.11.1.6) — according to the rate of utilization of hydrogen peroxide at λ = 260 nm; glutathione peroxidase (HP) (KF 1.11.1.9) — by the change in the content of reduced glutathione in samples before and after incubation of the substrate with dithiobis-nitrobenzoic acid at λ = 412 nm; glutathione reductase (GR) (K.F. 1.6.4.2) — according to the catalytic NADPH ∙ H+-dependent transformation of the oxidized form of glutathione into the reduced form, the intensity of which was estimated by the rate of decrease in the extinction of samples at λ = 340 nm, at which the NADPH H+ solution has a maximum light absorption (Warburg test).Results: the direction of the shifts in the state of the oxidative balance was established depending on the period of detraining. A significantly lower value of the total antioxidant activity was revealed in the former athletes of the 1st group. This phenomenon is probably associated with a decrease in the efficiency of the enzymatic link of the antioxidant defense in the absence of regular physical exertion, and, as a consequence, an increased consumption of non-enzymatic antioxidants. It was found that the early post-sports period is characterized by significantly lower, in comparison with the control group, the values of the activity of the first-order enzymes (superoxide dismutase) against the background of the increased activity of the second-order enzymes (catalase).Conclusions: the obtained data can be recommended for monitoring the state of athletes who stopped playing sports and taken into account when prescribing rehabilitation measures for the corresponding contingent.


Author(s):  
L. K. Parkhomenko ◽  
◽  
L. A. Strashok ◽  
S. I. Turchina ◽  
G. V. Kosovtsova ◽  
...  

Recently, interest in the problem of free radical oxidation in biological membranes, which is directly related to both the normal functioning of cells and the occurrence, course and outcome of many pathological conditions, has increased again in clinical medicine. The aim was to determine the role and impact of antioxidant defense in boys with hypoandrogenism. The study involved 75 adolescents with hypoandrogenism aged 13–18 years, who underwent a complex of clinical and laboratory examinations. All patients were conducted complex of anthropometric research and determination of the degree of delayed puberty, laboratory and instrumental examination. Free radical oxidation was determined by the levels of malondialdehyde, conjugated dienes, carbonated proteins, superoxide dismutase and catalase in the serum, and restored glutathione and glutathione peroxidase in whole blood. Based on their determination, the coefficient of oxidative stress was calculated. Statistical processing of results was performed using parametric and nonparametric methods. The study of indicators of the free radical oxidation process found that adolescents with hypoandrogenism have multidirectional changes in the oxidation of proteins and lipids, namely: the level of conjugated dienes increases, the concentration of malondialdehyde remains at the level of the control group, and the level of carbonated proteins tends to decrease. As for the activity of antioxidant protection enzymes, a significant decrease in the level of glutathione peroxidase was detected, while the level of superoxide dismutase and catalase remained at the level of normative indicators. Oxidative stress accompanies and is one of the pathogenetic links in the formation or maintenance of the state of hypoandrogenism in boys. This requires the use of antioxidants, the complex of which must be selected individually.


Author(s):  
М.И. Михайличенко ◽  
К.Г. Шаповалов ◽  
В.А. Мудров ◽  
С.А. Фигурский ◽  
Р.С. Емельянов

Актуальность. В структуре общего травматизма местная холодовая травма имеет большой удельный вес. Выявление новых маркеров криоповреждения способствует более ранней диагностике глубины поражений тканей при обморожении, созданию новых подходов к хирургическому лечению и ускоренной реабилитации пострадавших. Цель исследования - изучение в динамике содержания оксида азота, асимметричного диметиларгинина и циркулирующих эндотелиальных клеток в сыворотке крови у пациентов с местной холодовой травмой. Методика. В исследование включено 80 пациентов с обморожениями нижних конечностей III-IV степени в позднем реактивном периоде и периоде гранулирования и эпителизации. Использован мультиплексный анализ сыворотки крови набором реагентов фирмы Biomedical (США), методом Hladovec (1978) и методом П.П. Голикова (2004) соответвенно. Результаты. У пациентов с криотравмой во всех исследуемых группах установлено снижение уровня оксида азота относительно контроля. У пострадавших с местной холодовой травмой на 5-е сут отмечено значительное снижение в крови уровня асимметричного диметиларгинина. на 30-е сут с момента криоповреждения уровень асимметричного диметиларгинина не отличался от показателей контрольной группы. При обморожении дистальных сегментов стоп концентрация асимметричного диметиларгинина в крови не менялась относительно контроля. У пациентов с тяжелыми обморожениями нижних конечностей уровень асимметричного диметиларгинина в крови снижался в 3,6 раза. У пациентов с местной холодовой травмой на 5-е сут установлено увеличение в крови уровня циркулирующих эндотелиальных клеток в 5,2 раза, на 30-е сут с момента криоповреждения уровень циркулирующих эндотелиальных клеток снижался, но, по-прежнему, превышал контрольные значения. У пострадавших с обморожением дистальных сегментов стоп содержание в крови циркулирующих эндотелиальных клеток увеличилось в 2,7 раза, с поражением проксимальных сегментов нижних конечностей - в 6,7 раза относительно здоровых добровольцев. У пациентов с наиболее тяжелыми обморожениями нижних конечностей уровень циркулирующих эндотелиальных клеток в крови повышался в 9 раз. The relevance of local cold injury remains high. In the structure of general injury prevalence, proportion of freeze burns is great. Identification of new markers of cold injury will help earlier determination of tissue lesion depth, development of new approaches in the surgical treatment of deep freeze burns of extremities, and promote rehabilitation of patients. The aim of this study was to elucidate the dynamics of the serum content of nitric oxide (NO), asymmetric dimethylarginine (ADMA), and circulating endothelial cells (CEC) in patients with local cold injury. Methods. The study included 80 patients with III-IV degree frostbite of the lower extremities in the late reactive period and the period of granulation and epithelization. Multiplex analyses of blood serum were performed with Biomedical (USA) reagent kits, according to methods by Hladovec (1978) and Golikov (2004). Results. In all groups of patients with frostbite, NO level was decreased compared to the control. Patients with local cold trauma displayed significant decreases in blood levels of ADMA on day 5; on day 30 after the cold trauma, the ADMA level did not differ from the control group. In patients with frostbite of the distal foot segments, the blood concentration of ADMA did not change from the control level. In patients with the most severe frostbite of the lower extremities, serum ADMA decreased 3.6 times. Patients with local cold trauma had a 5.2-fold increase in the blood level of CEC on day 5. On day 30 after the freeze burn, the amount of CEC was decreased but still remained above the control value. In patients with frostbite of the distal foot segments, the content of CEC increased 2.7 times compared to the control. In patients with lesions of more proximal segments of the lower extremities, the CEC index was increased 6.7 times compared to healthy volunteers. In patients with the most severe frostbite of the lower extremities, the blood content of CEC was 9 times increased.


2019 ◽  
Vol 23 (1) ◽  
pp. 110-113
Author(s):  
K. E. Ishcheikin ◽  
V. V. Petrushenko ◽  
D. I. Grebeniuk ◽  
O. M. Zatserkovna ◽  
L. M. Malyk ◽  
...  

The aim of the work was to study the dynamics of changes in the immune system indices and antioxidant protection when fluoroquinolones are included in the treatment regimen for acute edematous pancreatitis. The study included 86 patients with a diagnosis of acute edematous pancreatitis. Group I (n=40) consisted of patients who received treatment according to national and local standards and protocols, group II (n=46) — patients who additionally received fluoroquinolones as part of a comprehensive treatment. The control group consisted of 48 conditionally healthy people in whom laboratory and instrumental diagnostics were carried out similarly to those in patients with acute pancreatitis. According to the purpose and objectives of the study, the state of the immune system and the antioxidant defense system was studied. In patients with acute pancreatitis, changes in the indicators of the immune status were revealed, manifested by the formation of a secondary immunodeficiency with the addition of an autoimmune component. The traditional scheme of pharmacotherapy of acute pancreatitis without the use of antibiotics made it possible to partially correct the indicators of immune status. The use of ciprofloxacin in the complex pharmacotherapy of acute pancreatitis contributed to the normalization of the studied parameters. Thus, the use of fluoroquinolones in the complex pharmacotherapy of acute pancreatitis made it possible to effectively normalize the state of the immune system, cytokine and antioxidant statuses.


2021 ◽  
Vol 14 (1) ◽  
pp. 68-74
Author(s):  
Yuliia Hafizivna Kilmukhametova ◽  
◽  
◽  
◽  
◽  
...  

This article highlights the results of a study of blood parameters in animals with simulated necrotizing ulcerative gingivitis and compares them, under the same conditions, with animals that received local treatment with a developed complex of antioxidant drugs. Following the work tasks, the nature of changes in the state of the antioxidant - prooxidant system and their influence on quantitative and functional indicators of markers of inflammatory intensity was analyzed and investigated during the pathological process in the background and without treatment with a developed complex. This work shows the changes of malonic dialdehyde concentration as an indicator of lipid peroxidation intensity in experimental animals, the level of catalase activity in the blood of animals, and antioxidant-prooxidant balance in the dynamics of necrotizing ulcerative gingivitis.


2019 ◽  
Vol 4 (1) ◽  
pp. 31-35
Author(s):  
Maria A. Rashidova ◽  
Leonid F. Sholokhov ◽  
Marina A. Darenskaya ◽  
Lyubov I. Kolesnikova

Background.Chronic viral hepatitis is a complex global problem and is still far from being solved. Many researchers point out influence of viral hepatitis on the reproductive system of women.Aim.To identify features of the functional state of pituitary-thyroid units of neuroendocrinal regulation, and to evaluate lipid peroxidation – antioxidant protection with determination of the oxidative stress coefficient in perimenopausal women with chronic form of hepatitis.Materials and methods. Study included 44 women with chronic viral hepatitis and 28 healthy women of the same age. Immunoabsorbent, spectrophotometric, fluorometric and statistical methods were used.Results.In patients with chronic viral hepatitis, we detected an increase in thyroxine levels – by 29.6% (р < 0.001) and free triiodothyronine values – by 65.7% (р = 0.008) in comparison with the control group. In the group with chronic viral hepatitis, the TBA-reactive products level increased by 1.9 times (р = 0.006), and superoxide dismutase activity decreased by 1.3 times (р < 0.001), total antioxidant activity – by 1.7 times (р < 0.001) and α-tocopherol level – by 1.3 times (р = 0.005) in comparison with the control group.Conclusions. The obtained data demonstrate the features of the pituitary-thyroid system functioning and the lipid peroxidation – antioxidant protection system in patients with chronic hepatitis. The chronic form of hepatitis is characterized by metabolic disorders that require a more careful approach in diagnosis and management.


2018 ◽  
Vol 20 (83) ◽  
pp. 204-207
Author(s):  
I.B. Kobilyukh

The enhancement of free radical oxidation, characteristic of inflammatory processes, is accompanied by a violation of the properties of biological membranes, the functioning of cells and damage to surrounding tissues. The purpose and task of the research was to make correction of antioxidant protection of the body of cows during the period of dry preparations containing nanoparticles of metals. To activate the antioxidant system of the body of cows during the dry period, use the vitamin complex «Nanovit». The experiment was conducted on cows of Ukrainian dairy black-and-white breed in Agroprodservice-Invest LLP of the Kozivsky District of the Ternopil Oblast. The experiment was conducted before 35–25 days to the calves birth where the experimental and control groups of cows were formed (n = 10). Cows of the experimental group for 35–25 days to the cattle, intramuscularly injected 5.0 ml vitamin complex «Nanovit» (composition: vitamins A, D, E and nanoparticles Cu, Zn, Mn, Co). Producer of «NVP» LLC «Ecological Capital». Cows of the control group for 35–25 days to the catheter, intramuscularly administered 15.0 ml of the drug Prodevit-tetra (1 ml of the preparation contains vitamin A – 50000 IU, vitamin D – 25000 IU, vitamin E – 20 mg, vitamin F – 6 mg). Manufacturer of Product Ltd. The study found that vitamins A, D, E, and nanoparticles Cu, Zn, Mn, Co, which are part of the drug «Nanovit», activate the antioxidant system of the body of cows during the dry period. So after the application of the drug «Nanovit» in the body of cows there was a decrease of 58.5% (Р ≤ 0.01) of diene conjugates and 95.0% (Р ≤ 0.001) of TBK-active products against the background of an increase of 20.0% (Р ≤ 0.01) activity of catalase. After the application of the drug «Nanovit», the service period of the period from cows decreased by 54 days, and the index of insemination decreased by 0.2 units against the cows fed «Prodevit-tetra», indicating a positive effect of the drug containing the nanoparticles of metals Cu, Zn, Mn, Co and vitamins A, D, E during the post-period period in cows.


2019 ◽  
Vol 21 (95) ◽  
pp. 98-101
Author(s):  
I. S. Varkholiak ◽  
B. V. Gutyj

The aim of this study was to investigate the effect of Bendamin on the antioxidant status of rats in experimental doxorubicin-induced cardiomyopathy. The studies were performed on white sexually mature young male of Vistar line rats weighing 180–200 g, which were kept on a standard diet of the Institute Vivarium of the State Research Institute of Veterinary Drugs and Feed Additives. Animals were divided into 3 groups of 6 animals in each: control group – intact animals; experimental group R1, in which animals were simulated with doxorubicin-induced cardiomyopathy by intraperitoneal administration of doxorubicin at a dose of 2.5 mg/kg 3 times a week for two weeks; experimental group R2, in which animals were injected with the drug “Bendamin” at a dose of 20 mg/kg after injection of doxorubicin. The data obtained indicate that the introduction into the experimental animals of the experimental group of doxorubicin is accompanied by intensification in the myocardium of the processes of free radical oxidation. The increase in diene conjugates was found to be 32.7% and TBK-active products increased by 37.6% compared to the control group of rats. Doxorubicin was also found to cause inhibition of the glutathione system of the animal's antioxidant protection after administration to rats. After administration of the drug “Bendamin”, rats of the second experimental group were suppressed with lipid peroxidation under the conditions of doxorubicin intoxication. In the rats of the second experimental group, the level of intermediates and end products is likely to decrease, so in the rat myocardial homogenate the level of diene conjugates decreased by 16.8% and the level of TBA-active products by 20.8% compared to the first experimental group. who had clinical signs of cardiomyopathy caused by doxorubicin administration. The use of the drug “Bendamin” in rats of the second experimental group contributed to the enhancement of the enzymatic and non-enzymatic element of the antioxidant system, protecting the structural and functional integrity of cell bioembranes. The results of the studies enrich the pharmacological characteristics of the drug “Bendamin”, indicate its sufficiently clear protective effect on the myocardium in experimental doxorubicin cardiomyopathy and is a convincing proof of the feasibility of the drug in veterinary practice.


2020 ◽  
Vol 48 (3) ◽  
pp. 32-37
Author(s):  
L. S. Babinets ◽  
I. M. Halabitska

Introduction. The main pharmacological effects of NSAIDs are anti-inflammatory, the onset and conduction of a pain signal, the aggregation of blood elements, neoangiogenesis, cell apoptosis, etc. — make them indispensable in the treatment of inflammatory and degenerative diseases of the joints and spine, in particular osteoarthritis. NSAIDs account for 25% of all medical complications, including bleeding rates (25–40%), which is a serious medical and important socio-economic problem. The risk of developing NSAIDs-gastropathy is determined both by severity of COX-2 inhibitory effect and non-prostaglandin systemic and local effects. Use of proton pump inhibitors, histamine blockers (mainly children and adolescents), and synthetic analogues of prostaglandins, as well as drugs of cytoprotective action, is pathogenetically justified in the treatment of NSAIDs-gastropathy. One of the newest and most economically available, most metabolically high-technological is the vitamin drug Doctovit. Aim: to study the effectiveness of Doctovit in the complex therapy of patients with NSAIDs-gastropathy on the background of chronic pancreatitis by analyzing the morphological parameters, indices of antioxidant protection system and endotoxicosis system. Materials and methods. 42 patients with NSAID-gastropathy on the background of chronic pancreatitis were examined. Patients, comparable by clinical, gender criteria, severity of NSAID-gastropathy and treatment received — were divided into two groups: I control group (20 patients), 10-day treatment regimen: PPI pantoprazole (Controlok, Nolpase, Pantasan, etc.) 40 mg×2; cancellation of NSAIDs; II main group (22 patients), 10-day treatment regimen: PPI pantoprazole (Controlok, Nolpase, Pantasan, etc.) 40 mg×2; cancellation of NSAIDs; Doctovit 2 tablets per day after meals for 2 months. Compulsory components of medical complexes were outpatient regimen and normotrophic nutrition. All patients with NSAID-gastropathy underwent standardized clinical laboratory examination. At the beginning of the study and two months after the start of treatment EGDS + biopsy from 5 places with histological examination was performed. The level of endotoxicosis was defined by the level of sorption capacity of erythrocytes, which was determined according to A. A. Togaibayev technique. The state of lipid peroxidation was evaluated by the level of malonic aldehyde, the state of antioxidant protection system — by the levels of superoxide dismutase, catalase, SH-groups. Results and discussion. Morphological examination of gastric EGD biopsy specimens before and after treatment in the comparison groups showed statistically significant efficacy of the proposed treatment complex with the inclusion of Doctovit in influencing the established pathological features of NSAID-gastropathy. There was a statistically significant improvement in endotoxicosis in both study groups after treatment, but in the II group the positive effect was statistically more significant. The proposed correction programs had a positive effect on the lipid peroxidation, but the correction program used in II group had a statistically significantly better effect. Conclusion. In the complex treatment of NSAID-gastropathy on the background of chronic pancreatitis, it is advisable to use the vitamin complex Doctovit 2 tablets per day after meals for 2 months, which has a positive effect on the condition of the gastric mucosa, indices of lipid peroxidation and endotoxicosis.  


Sign in / Sign up

Export Citation Format

Share Document